Her sentence now expires on May 5, 2018. Originally she was to remain in prison until January 2024.

Kent, who is now 49, entered a plea agreement with prosecutors in 2007 and a judge ordered the mandatory minimum 20 years.

Obama says it doesn't make sense to require nonviolent drug offenders to serve 20 years or more in prison. He says he's commuted sentences for 306 people, more than the previous six presidents combined.